package io;

import java.io.*;

/*
IO：Inupt和Output,即：输入和输出

 */
public class FOSDemo {
    public static void main(String[] args) throws IOException {
        File file=new File("fos.dat");
        FileOutputStream fos=new FileOutputStream(file);

    //    FileOutputStream fos=new FileOutputStream("fos.dat");
        fos.write(257);
        fos.write(2);
        System.out.println("写出完毕");
        fos.close();



    }
}
